Author Topic: Test Equipment Anonymous (TEA) group therapy thread  (Read 8920343 times)

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Online tggzzz

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #120600 on: May 24, 2022, 05:13:32 pm »
Ok got the meters sorted. Repair the two iffy ones and then on to scopes  :popcorn:

Disclaimer: may be bankrupt before Christmas at this rate.

I refer you to your post earlier today, viz "I semi-disagree with that. It should be easy to spend money safely and you should be educated to spend it wisely. Neither of those are inherently true at the moment."
There are lies, damned lies, statistics - and ADC/DAC specs.
Glider pilot's aphorism: "there is no substitute for span". Retort: "There is a substitute: skill+imagination. But you can buy span".
Having fun doing more, with less
 
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Online bd139

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #120601 on: May 24, 2022, 05:25:11 pm »
Ok got the meters sorted. Repair the two iffy ones and then on to scopes  :popcorn:

Disclaimer: may be bankrupt before Christmas at this rate.

I refer you to your post earlier today, viz "I semi-disagree with that. It should be easy to spend money safely and you should be educated to spend it wisely. Neither of those are inherently true at the moment."

I have a budget and plan down to a capability matrix and KT decision analysis spreadsheet :)

 

Online bd139

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #120602 on: May 24, 2022, 05:26:17 pm »
Ok got the meters sorted. Repair the two iffy ones and then on to scopes  :popcorn:



Disclaimer: may be bankrupt before Christmas at this rate.
The start of a good bench there already. I do like red LED and also green VFD displays, look really cool.

Will bd have a fancy programmable power supply like all the cool kids have these days?  :-//

No. Can’t stand the bloody things. I’ve got a PL320 still under the bed :)
 


Online bd139

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #120604 on: May 24, 2022, 05:28:36 pm »
Ok got the meters sorted. Repair the two iffy ones and then on to scopes  :popcorn:



Disclaimer: may be bankrupt before Christmas at this rate.

I thought you were about to move ?!  :-DD

Note the skills of the guy. He cropped the image accurately down to the pixel so that it looks like a tidy bench, when in fact there are boxes full of stuff stacked up to the ceiling left and right !  :-DD

Stupid question : why are you making your future move more difficult ? Why not simply wait until you have moved, to then buy the TE and not have to move it soon after (and risk damaging it in the process, also ! ) ?

 :-//

I guess you are just too impatient... after 6 months TE-less, you feel the need for TE again,  so badly that you can't even wait a few weeks or whatever is your moving date...

I’m ready to roll with the move. Now jammed on other people.  Figured I’m capable of burning some time on stuff I enjoy while I wait.

Also opportunities come and go. I’d regret passing on some or them.

As for the state of things it’s fairly minimal still…

 
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Offline med6753

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #120605 on: May 24, 2022, 05:40:39 pm »
BTW....the vertical compensation on both channels of the Type 1A2 plug-in was so perfect it's as if angels had performed the prior adjustments.



Damn I'm good  :-DD
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Offline Cubdriver

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #120606 on: May 24, 2022, 05:48:59 pm »
BTW....the vertical compensation on both channels of the Type 1A2 plug-in was so perfect it's as if angels had performed the prior adjustments.



Damn I'm good  :-DD

Humble, too!   :P :P

 :-DD

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If it jams, force it.  If it breaks, you needed a new one anyway...
 

Offline Zoli

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #120607 on: May 24, 2022, 05:56:57 pm »
BTW....the vertical compensation on both channels of the Type 1A2 plug-in was so perfect it's as if angels had performed the prior adjustments.



Damn I'm good  :-DD
FTFY, for future references  >:D :-DD :-DD :-DD
 
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Offline Specmaster

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #120608 on: May 24, 2022, 05:58:37 pm »
Ok got the meters sorted. Repair the two iffy ones and then on to scopes  :popcorn:



Disclaimer: may be bankrupt before Christmas at this rate.
The start of a good bench there already. I do like red LED and also green VFD displays, look really cool.

Will bd have a fancy programmable power supply like all the cool kids have these days?  :-//
Well, I suppose that depends on what type of power supply you are referring to?
Who let Murphy in?

Brymen-Fluke-HP-Thurlby-Heathkit-Thander-Tek-Extech-Black Star-GW-Advance-Avo-Kyoritsu-Amprobe-ITT-Robin-TTi
 

Online xrunner

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #120609 on: May 24, 2022, 06:05:02 pm »
Ok got the meters sorted. Repair the two iffy ones and then on to scopes  :popcorn:
Disclaimer: may be bankrupt before Christmas at this rate.
The start of a good bench there already. I do like red LED and also green VFD displays, look really cool.

Will bd have a fancy programmable power supply like all the cool kids have these days?  :-//
Well, I suppose that depends on what type of power supply you are referring to?

How about this one!  ;)
[hp] Hewlett . Packard
 

Online Cerebus

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #120610 on: May 24, 2022, 06:16:54 pm »
Ok got the meters sorted. Repair the two iffy ones and then on to scopes  :popcorn:



Disclaimer: may be bankrupt before Christmas at this rate.

I thought you were about to move ?!  :-DD

Note the skills of the guy. He cropped the image accurately down to the pixel so that it looks like a tidy bench, when in fact there are boxes full of stuff stacked up to the ceiling left and right !  :-DD

That's unkind. He, out of the goodness of his heart, tried to desperately minimise how much of that wallpaper that you'd have to look at.  :)
Anybody got a syringe I can use to squeeze the magic smoke back into this?
 
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Online Cerebus

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #120611 on: May 24, 2022, 06:18:30 pm »
Ok got the meters sorted. Repair the two iffy ones and then on to scopes  :popcorn:

Disclaimer: may be bankrupt before Christmas at this rate.

I refer you to your post earlier today, viz "I semi-disagree with that. It should be easy to spend money safely and you should be educated to spend it wisely. Neither of those are inherently true at the moment."

I have a budget and plan down to a capability matrix and KT decision analysis spreadsheet :)

Who is this Katie, and why is she spread on your sheets?

Anybody got a syringe I can use to squeeze the magic smoke back into this?
 
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Offline Specmaster

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #120612 on: May 24, 2022, 06:23:07 pm »
Were any of the UK members here? Any good finds?
 

McBryce.

see
https://www.eevblog.com/forum/testgear/test-equipment-anonymous-(tea)-group-therapy-thread/msg4189756/#msg4189756
and
https://www.eevblog.com/forum/testgear/test-equipment-anonymous-(tea)-group-therapy-thread/msg4189222/#msg4189222
Tggzzz was there too.
Looks interesting but most of what I saw in the video was old junk, but I dare say that had I gone along, some of that old junk would have come home with me, much to SWMBO's disgust  :-DD
Who let Murphy in?

Brymen-Fluke-HP-Thurlby-Heathkit-Thander-Tek-Extech-Black Star-GW-Advance-Avo-Kyoritsu-Amprobe-ITT-Robin-TTi
 
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Offline Specmaster

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #120613 on: May 24, 2022, 06:25:58 pm »
Ok got the meters sorted. Repair the two iffy ones and then on to scopes  :popcorn:
Disclaimer: may be bankrupt before Christmas at this rate.
The start of a good bench there already. I do like red LED and also green VFD displays, look really cool.

Will bd have a fancy programmable power supply like all the cool kids have these days?  :-//
Well, I suppose that depends on what type of power supply you are referring to?

How about this one!  ;)

Hmm, too complicated, what's wrong with good old rotary controls then, eh?
Who let Murphy in?

Brymen-Fluke-HP-Thurlby-Heathkit-Thander-Tek-Extech-Black Star-GW-Advance-Avo-Kyoritsu-Amprobe-ITT-Robin-TTi
 

Online xrunner

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #120614 on: May 24, 2022, 06:30:26 pm »
Hmm, too complicated, what's wrong with good old rotary controls then, eh?

Nothing, that's why I don't have, and will never, have anything like that thing!  :-DD
[hp] Hewlett . Packard
 
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Online bd139

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #120615 on: May 24, 2022, 06:42:51 pm »
This 3465A has some interesting problems with it  :popcorn:

So far if you short the input it drifts up on all ranges. And there’s a measurement offset. If you short the input JFET to ground it is fine. Currently happily buzzing out the front end. Whatever is wonky is really really difficult to find. Hopefully not the thin film array.

Edit: Fixed it. Comedy moment. I will write it up in another thread and on HPAK group.

Taster - this is the JFET input clamp diode pair by the look which disintegrated when I poked it :palm:

Edit 2: less crap photo with proper camera:

« Last Edit: May 24, 2022, 07:04:55 pm by bd139 »
 
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Online Vince

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #120616 on: May 24, 2022, 07:17:32 pm »
This 3465A has some interesting problems with it  :popcorn:

Edit: Fixed it. Comedy moment. I will write it up in another thread and on HPAK group.


Well as long as you post here the link to that thread so I can have a look... that is fine.

I wish my own DC offset problem was so quick to figure out..  :rant:
 
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Offline mansaxel

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #120617 on: May 24, 2022, 07:18:37 pm »

Just so you don't feel all alone, we're just reviving our car after 1 1/2 years in the underground car park. 100,000 km inspection with oil change, filters, change of break fluid etc.pp. Plus MOT. About 600 euros, they say, if they don't find anything unexpected. At least the tank is still 3/4 full. Was 1.05 euro per liter at the time.

And no, I can't do any of this myself. Wouldn't know where to do it.

Oh, yes, I need to do full wheel alignment, once I've swapped all the springy bits, and there's a 240000km inspection, too. Oil, filters, the lot.

Alignment I will outsource; the place where I'm likely to buy tires have done really good alignments of my old cars, so will let them do both, in concert.  The rest looks like I'm doing it m'self.

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #120618 on: May 24, 2022, 07:19:12 pm »
No TE for a while here. The car seems to swallow insane amounts of money, what with suspension renovation and similar. Picked up new sealing rings for front bearings today, and have just ordered reinforced rear springs and new front brake pads. New rear shocks and front control arms, as well as ABS rings are waiting to be fitted; got the old control arms out this weekend with a considerable amount of profanity involved.  One ABS sensor has already been swapped out; will be fixated as soon as I've got the new control arms in place.

To top this off, I need 4 new tyres too. Yay. And MOT defaults May 31st.

Just so you don't feel all alone, we're just reviving our car after 1 1/2 years in the underground car park. 100,000 km inspection with oil change, filters, change of break fluid etc.pp. Plus MOT. About 600 euros, they say, if they don't find anything unexpected. At least the tank is still 3/4 full. Was 1.05 euro per liter at the time.

And no, I can't do any of this myself. Wouldn't know where to do it.

You should top that tank up to full with premium fuel before the MOT. Stale fuel is not great for emissions.
 
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Offline factory

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #120619 on: May 24, 2022, 07:21:23 pm »
No, I don't want to bother the seller about this, because I have zero intention to buy his meter. Not that I don't want to, but just that I can not : he sells it for 150 Euros, which is 3 times my "impulse buy budget", he says he won't take no offer, and also it's local pick-up only, and of course he leaves half way across the country from me.
So I don't want to waste his time and make him angry.

I am secretly hoping he might lower the price " one day ", because it's been on sale for 5 months now as you can see so... I keep an eye on it, who knows. Hardly holding my breath though...



Those Philips DMMs turn up occasionally & rarely make more than £50, unless in near perfect condition, most seem a bit beat up & corroded.

David
 

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #120620 on: May 24, 2022, 07:24:39 pm »
Geez, only 50 quid ?!  :o  I will have two please !!  >:D
 

Offline mansaxel

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #120621 on: May 24, 2022, 07:29:38 pm »
Hmm, too complicated, what's wrong with good old rotary controls then, eh?

Nothing, that's why I don't have, and will never, have anything like that thing!  :-DD

Those look a bit modern, at least compared to my [hp] /  Harrison duo, a 6237 and a 6206. But the TTi CPX200 looks at them and thinks they're like Grandpa, as does the Uni-T one. I truly feel I'm close to complete in the DC bench supply department; all I need is a high voltage one, like 320V or so. The  6209 is nice; pity they're always so expensive.

Offline factory

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #120622 on: May 24, 2022, 07:52:30 pm »
The old HP/Dymec 2401A/2401C could measure frequency - to a blinding 300 kc, according to the spec sheet (it came out before Hz was widely used for frequency).




Shown here in the 'check' position with the expected 10 kHz display.

This one's still in the queue...

Additional pics:  https://pmanning.smugmug.com/Electronics/HPDymec-2401C-Integrating

-Pat

Thanks ! Looks really nice, would not mind one !!  :D ! I guess they must be rare in expensive, but you will tell me you got it for a tenner in some ham fest, or free found on the side of the road, just to drive me mad !!!  :-DD

Maybe they go for cheaper because they are not branded "HP"  ?!  :-// 
That would help me.

No, that one I found at a surplus place in CA about six years ago.  It had been there for a while given the coating of dust it wore.  Can’t recall what I paid for it, probably between $70~100 (and likely about that again to ship it home).  As far as I can tell, they’re pretty rare at this point - mine is the only one I’ve ever seen in the flesh, though I know of one other guy on the HPAK mailing list who also has one.  Dymec was one of the early companies that HP bought out; look closely at the logo and you’ll notice it is the contemporary HP logo, but inverted.

It’s a cool old beast, but huge and heavy for being a DC voltmeter.

-Pat

Some of the spare used display boards (no glassware fitted) I bought from Sphere, are from one of those, only confirmed it after buying a manual.
I do have the AC/ohms unit for one, but no matching voltmeter, the knobs have been changed for Philips ones, for some unknown reason.


David
« Last Edit: May 24, 2022, 07:56:12 pm by factory »
 
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Online mnementh

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #120623 on: May 24, 2022, 07:55:28 pm »
...I mean, when I made all of these loverly 12 & 13ga sillycone jumpers for ~$40 delivered...

      ...that was much more viscerally satisfying.
I don't like pogo pins on hand held test leads, they slip off things easily and short stuff out. Guess how I found that out :)

As for the banana leads, I might actually make some of them. I need them. Thanks for the poke  :-+  :-DD


Thou hast been touched by his noodly appendage.      
Go forth and make ye many noodles; make ye them of all sizes and colors. Amen. >:D

mnem
No, not my noodly appendage, you perv. ::)
« Last Edit: May 24, 2022, 07:59:01 pm by mnementh »
alt-codes work here:  alt-0128 = €  alt-156 = £  alt-0216 = Ø  alt-225 = ß  alt-230 = µ  alt-234 = Ω  alt-236 = ∞  alt-248 = °
 
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Offline Neomys Sapiens

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #120624 on: May 24, 2022, 08:06:44 pm »
"Eggs... They're from a chicken's arse!" ~grand-dad

The old man knew how to make us kids clean our plates at breakfast, all right... :-DD

mnem
"And don't you dare waste a bite of that pig-butt, or I'll bite your butts!"  Okay, maybe that bit wasn't as funny as I remember...  :o
Say, any connection???
 


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